Name/Finger Protocol
The Name/Finger Protocol (FINGER) is an application-level Internet protocol that provides an interface between the finger command and the fingerd daemon.
The fingerd daemon returns information about the users currently logged in to a specified remote host. If you execute the finger command specifying a user at a particular host, you will obtain specific information about that user. The FINGER Protocol must be present at the remote host and at the requesting host. FINGER uses Transmission Control Protocol (Transmission Control Protocol) as its underlying protocol.
Note: TCP/IP does not provide an API to this protocol.
For more information, see the finger command description and the fingerd daemon description in Commands Reference, Volume 2.